Yammer app Pinned on Suite Bar

I just notice that the link to Yammer that I have pinned to the O365 Suite bar changes to the most recently visited Yammer network. I originally added it when logged into my employers tenant and it would take me to that companies Yammer network. I belong to many other Yammer networks, and after visiting some of them I clicked on  the Yammer app in the Suite bar and it did not take me to my companies network, it sent me to the last network i visited.

Has anyone else experienced similiar behavior?

I don't understand why a pinned app would have a dynamic link. After pinning an app, Iexpect it to always take me to the same location.